136021420557522 has 48 divisors (see below), whose sum is σ = 299565390884760. Its totient is φ = 44594067801600.

The previous prime is 136021420557521. The next prime is 136021420557523. The reversal of 136021420557522 is 225755024120631.

It is a happy number.

136021420557522 is a `hidden beast` number, since 1 + 3 + 6 + 0 + 2 + 1 + 42 + 0 + 557 + 52 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (136021420557521) and next prime (136021420557523).

It can be written as a sum of positive squares in 4 ways, for example, as 72050201321121 + 63971219236401 = 8488239^2 + 7998201^2 .

It is a super-3 number, since 3×136021420557522³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (136021420557521) 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, 11399304 + ... + 20049612.

Almost surely, 2^{136021420557522} is an apocalyptic number.

136021420557522 is an abundant number, since it is smaller than the sum of its proper divisors (163543970327238).

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

136021420557522 is a wasteful number, since it uses less digits than its factorization.

136021420557522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8664699 (or 8664696 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 136021420557522 in words is "one hundred thirty-six trillion, twenty-one billion, four hundred twenty million, five hundred fifty-seven thousand, five hundred twenty-two".