16506142436 has 24 divisors (see below), whose sum is σ = 33015681216. Its totient is φ = 7073333280.

The previous prime is 16506142423. The next prime is 16506142447. The reversal of 16506142436 is 63424160561.

It is a super-3 number, since 3×16506142436³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16506142436.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316151 + ... + 364641.

It is an arithmetic number, because the mean of its divisors is an integer number (1375653384).

Almost surely, 2^16506142436 is an apocalyptic number.

It is an amenable number.

16506142436 is an abundant number, since it is smaller than the sum of its proper divisors (16509538780).

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

16506142436 is a wasteful number, since it uses less digits than its factorization.

16506142436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60659 (or 60657 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 16506142436 in words is "sixteen billion, five hundred six million, one hundred forty-two thousand, four hundred thirty-six".