153997742536 has 192 divisors, whose sum is σ = 347752440000. Its totient is φ = 63630927360.

The previous prime is 153997742501. The next prime is 153997742579. The reversal of 153997742536 is 635247799351.

It is a super-2 number, since 2×153997742536² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95472066 + ... + 95473678.

It is an arithmetic number, because the mean of its divisors is an integer number (1811210625).

Almost surely, 2^153997742536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153997742536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173876220000).

153997742536 is an abundant number, since it is smaller than the sum of its proper divisors (193754697464).

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

153997742536 is a wasteful number, since it uses less digits than its factorization.

153997742536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868 (or 1853 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 61.

The spelling of 153997742536 in words is "one hundred fifty-three billion, nine hundred ninety-seven million, seven hundred forty-two thousand, five hundred thirty-six".