16545250631 has 8 divisors (see below), whose sum is σ = 20363385504. Its totient is φ = 13090747680.

The previous prime is 16545250609. The next prime is 16545250639. The reversal of 16545250631 is 13605254561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16545250631 - 2¹⁴ = 16545234247 is a prime.

It is a super-2 number, since 2×16545250631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545250639) 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, 90907880 + ... + 90908061.

It is an arithmetic number, because the mean of its divisors is an integer number (2545423188).

Almost surely, 2^16545250631 is an apocalyptic number.

16545250631 is a deficient number, since it is larger than the sum of its proper divisors (3818134873).

16545250631 is a wasteful number, since it uses less digits than its factorization.

16545250631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181815961.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 16545250631 in words is "sixteen billion, five hundred forty-five million, two hundred fifty thousand, six hundred thirty-one".