2155609610567 has 8 divisors (see below), whose sum is σ = 2491234221600. Its totient is φ = 1826905094784.

The previous prime is 2155609610551. The next prime is 2155609610579. The reversal of 2155609610567 is 7650169065512.

It is a happy number.

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

It is not a de Polignac number, because 2155609610567 - 2⁴ = 2155609610551 is a prime.

It is a super-2 number, since 2×2155609610567² (a number of 25 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 (2155609610527) 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, 1730023142 + ... + 1730024387.

It is an arithmetic number, because the mean of its divisors is an integer number (311404277700).

Almost surely, 2^{2155609610567} is an apocalyptic number.

2155609610567 is a deficient number, since it is larger than the sum of its proper divisors (335624611033).

2155609610567 is an equidigital number, since it uses as much as digits as its factorization.

2155609610567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460047625.

The product of its (nonzero) digits is 3402000, while the sum is 53.

The spelling of 2155609610567 in words is "two trillion, one hundred fifty-five billion, six hundred nine million, six hundred ten thousand, five hundred sixty-seven".