16311628480 has 56 divisors (see below), whose sum is σ = 44390937888. Its totient is φ = 5592557568.

The previous prime is 16311628457. The next prime is 16311628483. The reversal of 16311628480 is 8482611361.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×16311628480² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (16311628483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3638749 + ... + 3643228.

Almost surely, 2^16311628480 is an apocalyptic number.

16311628480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16311628480 is an abundant number, since it is smaller than the sum of its proper divisors (28079309408).

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

16311628480 is an equidigital number, since it uses as much as digits as its factorization.

16311628480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282001 (or 7281991 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 16311628480 in words is "sixteen billion, three hundred eleven million, six hundred twenty-eight thousand, four hundred eighty".