2254151601621 has 24 divisors (see below), whose sum is σ = 3262954500000. Its totient is φ = 1499557273632.

The previous prime is 2254151601571. The next prime is 2254151601631. The reversal of 2254151601621 is 1261061514522.

2254151601621 is a `hidden beast` number, since 2 + 2 + 5 + 4 + 15 + 16 + 0 + 1 + 621 = 666.

It is not a de Polignac number, because 2254151601621 - 2⁶ = 2254151601557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2254151601631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38903530 + ... + 38961428.

It is an arithmetic number, because the mean of its divisors is an integer number (135956437500).

Almost surely, 2^{2254151601621} is an apocalyptic number.

It is an amenable number.

2254151601621 is a deficient number, since it is larger than the sum of its proper divisors (1008802898379).

2254151601621 is a wasteful number, since it uses less digits than its factorization.

2254151601621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67073 (or 67070 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 2254151601621 in words is "two trillion, two hundred fifty-four billion, one hundred fifty-one million, six hundred one thousand, six hundred twenty-one".