136965724208680 has 32 divisors (see below), whose sum is σ = 308522678504040. Its totient is φ = 54724103188480.

The previous prime is 136965724208657. The next prime is 136965724208689. The reversal of 136965724208680 is 86802427569631.

It can be written as a sum of positive squares in 4 ways, for example, as 124415865322596 + 12549858886084 = 11154186^2 + 3542578^2 .

It is a super-2 number, since 2×136965724208680² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136965724208689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1943292289 + ... + 1943362768.

It is a 1-persistent number, because it is pandigital, but 2⋅136965724208680 = 273931448417360 is not.

Almost surely, 2^{136965724208680} is an apocalyptic number.

136965724208680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136965724208680 is an abundant number, since it is smaller than the sum of its proper divisors (171556954295360).

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

136965724208680 is a wasteful number, since it uses less digits than its factorization.

136965724208680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886655949 (or 3886655945 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 67.

The spelling of 136965724208680 in words is "one hundred thirty-six trillion, nine hundred sixty-five billion, seven hundred twenty-four million, two hundred eight thousand, six hundred eighty".