2161501604152 has 32 divisors (see below), whose sum is σ = 4442207126400. Its totient is φ = 977844319200.

The previous prime is 2161501604149. The next prime is 2161501604173. The reversal of 2161501604152 is 2514061051612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58186452 + ... + 58223587.

It is an arithmetic number, because the mean of its divisors is an integer number (138818972700).

Almost surely, 2^{2161501604152} is an apocalyptic number.

2161501604152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2161501604152 is an abundant number, since it is smaller than the sum of its proper divisors (2280705522248).

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

2161501604152 is a wasteful number, since it uses less digits than its factorization.

2161501604152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116410267 (or 116410263 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 2161501604152 its reverse (2514061051612), we get a palindrome (4675562655764).

The spelling of 2161501604152 in words is "two trillion, one hundred sixty-one billion, five hundred one million, six hundred four thousand, one hundred fifty-two".