16540012146 has 64 divisors (see below), whose sum is σ = 38011576320. Its totient is φ = 4700055360.

The previous prime is 16540012123. The next prime is 16540012169. The reversal of 16540012146 is 64121004561.

It is an interprime number because it is at equal distance from previous prime (16540012123) and next prime (16540012169).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10291675 + ... + 10293281.

It is an arithmetic number, because the mean of its divisors is an integer number (593930880).

Almost surely, 2^16540012146 is an apocalyptic number.

16540012146 is an abundant number, since it is smaller than the sum of its proper divisors (21471564174).

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

16540012146 is a wasteful number, since it uses less digits than its factorization.

16540012146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 16540012146 in words is "sixteen billion, five hundred forty million, twelve thousand, one hundred forty-six".