16140765501 has 24 divisors (see below), whose sum is σ = 26655370560. Its totient is φ = 9219730176.

The previous prime is 16140765497. The next prime is 16140765503. The reversal of 16140765501 is 10556704161.

It is a happy number.

16140765501 is a `hidden beast` number, since 1 + 6 + 140 + 7 + 6 + 5 + 501 = 666.

It is not a de Polignac number, because 16140765501 - 2² = 16140765497 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16140765503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119341 + ... + 215693.

It is an arithmetic number, because the mean of its divisors is an integer number (1110640440).

Almost surely, 2^16140765501 is an apocalyptic number.

It is an amenable number.

16140765501 is a deficient number, since it is larger than the sum of its proper divisors (10514605059).

16140765501 is a wasteful number, since it uses less digits than its factorization.

16140765501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99025 (or 99022 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 16140765501 in words is "sixteen billion, one hundred forty million, seven hundred sixty-five thousand, five hundred one".