136690619520 has 768 divisors, whose sum is σ = 553662103680. Its totient is φ = 28426567680.

The previous prime is 136690619519. The next prime is 136690619579. The reversal of 136690619520 is 25916096631.

It is a happy number.

It is a super-2 number, since 2×136690619520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 136690619520.

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, 89281155 + ... + 89282685.

Almost surely, 2^136690619520 is an apocalyptic number.

136690619520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136690619520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276831051840).

136690619520 is an abundant number, since it is smaller than the sum of its proper divisors (416971484160).

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

136690619520 is a wasteful number, since it uses less digits than its factorization.

136690619520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 136690619520 in words is "one hundred thirty-six billion, six hundred ninety million, six hundred nineteen thousand, five hundred twenty".