2643551121154 has 16 divisors (see below), whose sum is σ = 4077845013600. Its totient is φ = 1284772887904.

The previous prime is 2643551121139. The next prime is 2643551121199. The reversal of 2643551121154 is 4511211553462.

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, 125848912 + ... + 125869915.

It is an arithmetic number, because the mean of its divisors is an integer number (254865313350).

Almost surely, 2^{2643551121154} is an apocalyptic number.

2643551121154 is a deficient number, since it is larger than the sum of its proper divisors (1434293892446).

2643551121154 is a wasteful number, since it uses less digits than its factorization.

2643551121154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251718977.

The product of its digits is 144000, while the sum is 40.

The spelling of 2643551121154 in words is "two trillion, six hundred forty-three billion, five hundred fifty-one million, one hundred twenty-one thousand, one hundred fifty-four".