16507054501 has 4 divisors (see below), whose sum is σ = 18865205152. Its totient is φ = 14148903852.

The previous prime is 16507054493. The next prime is 16507054507. The reversal of 16507054501 is 10545070561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10545070561 = 101603 ⋅103787.

It is a cyclic number.

It is not a de Polignac number, because 16507054501 - 2³ = 16507054493 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16507054507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179075315 + ... + 1179075328.

It is an arithmetic number, because the mean of its divisors is an integer number (4716301288).

Almost surely, 2^16507054501 is an apocalyptic number.

It is an amenable number.

16507054501 is a deficient number, since it is larger than the sum of its proper divisors (2358150651).

16507054501 is an equidigital number, since it uses as much as digits as its factorization.

16507054501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358150650.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 16507054501 in words is "sixteen billion, five hundred seven million, fifty-four thousand, five hundred one".