16575159551 has 2 divisors, whose sum is σ = 16575159552. Its totient is φ = 16575159550.

The previous prime is 16575159533. The next prime is 16575159581. The reversal of 16575159551 is 15595157561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16575159551 - 2²² = 16570965247 is a prime.

It is a super-2 number, since 2×16575159551² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16575159551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16575159581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8287579775 + 8287579776.

It is an arithmetic number, because the mean of its divisors is an integer number (8287579776).

Almost surely, 2^16575159551 is an apocalyptic number.

16575159551 is a deficient number, since it is larger than the sum of its proper divisors (1).

16575159551 is an equidigital number, since it uses as much as digits as its factorization.

16575159551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1181250, while the sum is 50.

The spelling of 16575159551 in words is "sixteen billion, five hundred seventy-five million, one hundred fifty-nine thousand, five hundred fifty-one".