2656061451 has 24 divisors (see below), whose sum is σ = 3973044816. Its totient is φ = 1708799040.

The previous prime is 2656061393. The next prime is 2656061489. The reversal of 2656061451 is 1541606562.

2656061451 is a `hidden beast` number, since 2 + 6 + 5 + 606 + 1 + 45 + 1 = 666.

It is not a de Polignac number, because 2656061451 - 2³¹ = 508577803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2656061651) 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, 16545 + ... + 74738.

It is an arithmetic number, because the mean of its divisors is an integer number (165543534).

Almost surely, 2^2656061451 is an apocalyptic number.

2656061451 is a deficient number, since it is larger than the sum of its proper divisors (1316983365).

2656061451 is a wasteful number, since it uses less digits than its factorization.

2656061451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91403 (or 91400 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2656061451 is about 51536.9910937765. The cubic root of 2656061451 is about 1384.8817948791.

The spelling of 2656061451 in words is "two billion, six hundred fifty-six million, sixty-one thousand, four hundred fifty-one".