16312513506 has 16 divisors (see below), whose sum is σ = 34544146464. Its totient is φ = 5117651264.

The previous prime is 16312513501. The next prime is 16312513507. The reversal of 16312513506 is 60531521361.

It is not an unprimeable number, because it can be changed into a prime (16312513501) 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, 79963200 + ... + 79963403.

It is an arithmetic number, because the mean of its divisors is an integer number (2159009154).

Almost surely, 2^16312513506 is an apocalyptic number.

16312513506 is an abundant number, since it is smaller than the sum of its proper divisors (18231632958).

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

16312513506 is a wasteful number, since it uses less digits than its factorization.

16312513506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159926625.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 16312513506 in words is "sixteen billion, three hundred twelve million, five hundred thirteen thousand, five hundred six".