155675576551 has 16 divisors (see below), whose sum is σ = 171297370368. Its totient is φ = 140303923200.

The previous prime is 155675576513. The next prime is 155675576557.

155675576551 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 155675576551 - 2¹⁹ = 155675052263 is a prime.

It is a super-2 number, since 2×155675576551² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155675576557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466006 + ... + 726988.

It is an arithmetic number, because the mean of its divisors is an integer number (10706085648).

Almost surely, 2^155675576551 is an apocalyptic number.

155675576551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155675576551 is a deficient number, since it is larger than the sum of its proper divisors (15621793817).

155675576551 is a wasteful number, since it uses less digits than its factorization.

155675576551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261462.

The product of its digits is 27562500, while the sum is 58.

The spelling of 155675576551 in words is "one hundred fifty-five billion, six hundred seventy-five million, five hundred seventy-six thousand, five hundred fifty-one".