2155534251630 has 16 divisors (see below), whose sum is σ = 5173282203984. Its totient is φ = 574809133760.

The previous prime is 2155534251553. The next prime is 2155534251643. The reversal of 2155534251630 is 361524355512.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35925570831 + ... + 35925570890.

It is an arithmetic number, because the mean of its divisors is an integer number (323330137749).

Almost surely, 2^{2155534251630} is an apocalyptic number.

2155534251630 is an abundant number, since it is smaller than the sum of its proper divisors (3017747952354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155534251630 is a wasteful number, since it uses less digits than its factorization.

2155534251630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71851141731.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 2155534251630 in words is "two trillion, one hundred fifty-five billion, five hundred thirty-four million, two hundred fifty-one thousand, six hundred thirty".