136705651425 has 96 divisors (see below), whose sum is σ = 299488450560. Its totient is φ = 59776833600.

The previous prime is 136705651393. The next prime is 136705651441. The reversal of 136705651425 is 524156507631.

136705651425 is a `hidden beast` number, since 1 + 3 + 6 + 70 + 565 + 14 + 2 + 5 = 666.

It is not a de Polignac number, because 136705651425 - 2⁵ = 136705651393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 520291 + ... + 737640.

It is an arithmetic number, because the mean of its divisors is an integer number (3119671360).

Almost surely, 2^136705651425 is an apocalyptic number.

136705651425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136705651425 is an abundant number, since it is smaller than the sum of its proper divisors (162782799135).

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

136705651425 is a wasteful number, since it uses less digits than its factorization.

136705651425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257980 (or 1257969 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

It can be divided in two parts, 1367056 and 51425, that added together give a square (1418481 = 1191²).

The spelling of 136705651425 in words is "one hundred thirty-six billion, seven hundred five million, six hundred fifty-one thousand, four hundred twenty-five".