2155570001607 has 32 divisors (see below), whose sum is σ = 3192460128000. Its totient is φ = 1282675178240.

The previous prime is 2155570001587. The next prime is 2155570001639. The reversal of 2155570001607 is 7061000755512.

It is a cyclic number.

It is not a de Polignac number, because 2155570001607 - 2¹⁹ = 2155569477319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155570001677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890869 + ... + 2259377.

It is an arithmetic number, because the mean of its divisors is an integer number (99764379000).

Almost surely, 2^{2155570001607} is an apocalyptic number.

2155570001607 is a deficient number, since it is larger than the sum of its proper divisors (1036890126393).

2155570001607 is a wasteful number, since it uses less digits than its factorization.

2155570001607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369391.

The product of its (nonzero) digits is 73500, while the sum is 39.

The spelling of 2155570001607 in words is "two trillion, one hundred fifty-five billion, five hundred seventy million, one thousand, six hundred seven".