1663522476 has 96 divisors (see below), whose sum is σ = 5006292480. Its totient is φ = 417177600.

The previous prime is 1663522463. The next prime is 1663522477. The reversal of 1663522476 is 6742253661.

It is a hoax number, since the sum of its digits (42) 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 (42).

It is not an unprimeable number, because it can be changed into a prime (1663522477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4245 + ... + 57836.

It is an arithmetic number, because the mean of its divisors is an integer number (52148880).

Almost surely, 2^1663522476 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 1663522476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2503146240).

1663522476 is an abundant number, since it is smaller than the sum of its proper divisors (3342770004).

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

1663522476 is a wasteful number, since it uses less digits than its factorization.

1663522476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62135 (or 62133 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 1663522476 is about 40786.3025536760. The cubic root of 1663522476 is about 1184.8850621131.

The spelling of 1663522476 in words is "one billion, six hundred sixty-three million, five hundred twenty-two thousand, four hundred seventy-six".