10633645980 has 84 divisors (see below), whose sum is σ = 33480714792. Its totient is φ = 2835635040.

The previous prime is 10633645961. The next prime is 10633645987. The reversal of 10633645980 is 8954633601.

10633645980 is a `hidden beast` number, since 1 + 0 + 633 + 6 + 4 + 5 + 9 + 8 + 0 = 666.

It is a super-2 number, since 2×10633645980² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10633645987) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 350086 + ... + 379245.

It is an arithmetic number, because the mean of its divisors is an integer number (398579938).

Almost surely, 2^10633645980 is an apocalyptic number.

10633645980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10633645980 is an abundant number, since it is smaller than the sum of its proper divisors (22847068812).

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

10633645980 is an equidigital number, since it uses as much as digits as its factorization.

10633645980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729358 (or 729341 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 10633645980 in words is "ten billion, six hundred thirty-three million, six hundred forty-five thousand, nine hundred eighty".