2156144466260 has 24 divisors (see below), whose sum is σ = 4571863610496. Its totient is φ = 854084409120.

The previous prime is 2156144466257. The next prime is 2156144466277. The reversal of 2156144466260 is 626644416512.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 523333976 + ... + 523338095.

It is an arithmetic number, because the mean of its divisors is an integer number (190494317104).

Almost surely, 2^{2156144466260} is an apocalyptic number.

2156144466260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2156144466260 is an abundant number, since it is smaller than the sum of its proper divisors (2415719144236).

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

2156144466260 is a wasteful number, since it uses less digits than its factorization.

2156144466260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046672183 (or 1046672181 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 2156144466260 in words is "two trillion, one hundred fifty-six billion, one hundred forty-four million, four hundred sixty-six thousand, two hundred sixty".