152021605520 has 40 divisors (see below), whose sum is σ = 354764224440. Its totient is φ = 60582579200.

The previous prime is 152021605493. The next prime is 152021605523. The reversal of 152021605520 is 25506120251.

It can be written as a sum of positive squares in 4 ways, for example, as 96275344 + 151925330176 = 9812^2 + 389776^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×152021605520² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (152021605523) 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, 3510581 + ... + 3553620.

It is an arithmetic number, because the mean of its divisors is an integer number (8869105611).

Almost surely, 2^152021605520 is an apocalyptic number.

152021605520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152021605520 is an abundant number, since it is smaller than the sum of its proper divisors (202742618920).

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

152021605520 is a wasteful number, since it uses less digits than its factorization.

152021605520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7064483 (or 7064477 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 152021605520 its reverse (25506120251), we get a palindrome (177527725771).

The spelling of 152021605520 in words is "one hundred fifty-two billion, twenty-one million, six hundred five thousand, five hundred twenty".