2154405551152 has 20 divisors (see below), whose sum is σ = 4191625870560. Its totient is φ = 1072695649088.

The previous prime is 2154405551143. The next prime is 2154405551167. The reversal of 2154405551152 is 2511555044512.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281691463 + ... + 281699110.

It is an arithmetic number, because the mean of its divisors is an integer number (209581293528).

Almost surely, 2^{2154405551152} is an apocalyptic number.

It is an amenable number.

2154405551152 is a deficient number, since it is larger than the sum of its proper divisors (2037220319408).

2154405551152 is a wasteful number, since it uses less digits than its factorization.

2154405551152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563390820 (or 563390814 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 40.

The spelling of 2154405551152 in words is "two trillion, one hundred fifty-four billion, four hundred five million, five hundred fifty-one thousand, one hundred fifty-two".