162615401520 has 640 divisors, whose sum is σ = 613568729088. Its totient is φ = 35101900800.

The previous prime is 162615401483. The next prime is 162615401537. The reversal of 162615401520 is 25104516261.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 117751230 + ... + 117752610.

Almost surely, 2^162615401520 is an apocalyptic number.

162615401520 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 162615401520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306784364544).

162615401520 is an abundant number, since it is smaller than the sum of its proper divisors (450953327568).

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

162615401520 is a wasteful number, since it uses less digits than its factorization.

162615401520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541 (or 1535 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 162615401520 its reverse (25104516261), we get a palindrome (187719917781).

The spelling of 162615401520 in words is "one hundred sixty-two billion, six hundred fifteen million, four hundred one thousand, five hundred twenty".