136424721015 has 64 divisors (see below), whose sum is σ = 267847948800. Its totient is φ = 66145260960.

The previous prime is 136424720969. The next prime is 136424721019. The reversal of 136424721015 is 510127424631.

136424721015 is a `hidden beast` number, since 1 + 3 + 6 + 424 + 7 + 210 + 15 = 666.

It is not a de Polignac number, because 136424721015 - 2⁶ = 136424720951 is a prime.

It is a super-2 number, since 2×136424721015² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136424721019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 446805 + ... + 687374.

It is an arithmetic number, because the mean of its divisors is an integer number (4185124200).

Almost surely, 2^136424721015 is an apocalyptic number.

136424721015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136424721015 is a deficient number, since it is larger than the sum of its proper divisors (131423227785).

136424721015 is an equidigital number, since it uses as much as digits as its factorization.

136424721015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134216 (or 1134198 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 136424721015 in words is "one hundred thirty-six billion, four hundred twenty-four million, seven hundred twenty-one thousand, fifteen".