2155482672 has 160 divisors (see below), whose sum is σ = 6554009088. Its totient is φ = 597639168.

The previous prime is 2155482643. The next prime is 2155482701. The reversal of 2155482672 is 2762845512.

It is an interprime number because it is at equal distance from previous prime (2155482643) and next prime (2155482701).

It is a super-2 number, since 2×2155482672² = 9292211098584519168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2788078 + ... + 2788850.

Almost surely, 2^2155482672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2155482672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3277004544).

2155482672 is an abundant number, since it is smaller than the sum of its proper divisors (4398526416).

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

2155482672 is a wasteful number, since it uses less digits than its factorization.

2155482672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1021 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 2155482672 is about 46427.1760071620. The cubic root of 2155482672 is about 1291.7590472968.

The spelling of 2155482672 in words is "two billion, one hundred fifty-five million, four hundred eighty-two thousand, six hundred seventy-two".