2147553980 has 216 divisors, whose sum is σ = 5520085200. Its totient is φ = 700677120.

The previous prime is 2147553977. The next prime is 2147554009. The reversal of 2147553980 is 893557412.

It is a super-2 number, since 2×2147553980² = 9223976194027680800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24129776 + ... + 24129864.

It is an arithmetic number, because the mean of its divisors is an integer number (25555950).

Almost surely, 2^2147553980 is an apocalyptic number.

2147553980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2147553980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2760042600).

2147553980 is an abundant number, since it is smaller than the sum of its proper divisors (3372531220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2147553980 is a wasteful number, since it uses less digits than its factorization.

2147553980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 2147553980 is about 46341.7088592987. The cubic root of 2147553980 is about 1290.1732395586.

The spelling of 2147553980 in words is "two billion, one hundred forty-seven million, five hundred fifty-three thousand, nine hundred eighty".