2153145661156 has 24 divisors (see below), whose sum is σ = 4306328208000. Its totient is φ = 922768807872.

The previous prime is 2153145661111. The next prime is 2153145661189. The reversal of 2153145661156 is 6511665413512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3993345 + ... + 4500343.

It is an arithmetic number, because the mean of its divisors is an integer number (179430342000).

Almost surely, 2^{2153145661156} is an apocalyptic number.

It is an amenable number.

2153145661156 is an abundant number, since it is smaller than the sum of its proper divisors (2153182546844).

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

2153145661156 is a wasteful number, since it uses less digits than its factorization.

2153145661156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658683 (or 658681 counting only the distinct ones).

The product of its digits is 648000, while the sum is 46.

The spelling of 2153145661156 in words is "two trillion, one hundred fifty-three billion, one hundred forty-five million, six hundred sixty-one thousand, one hundred fifty-six".