153661118840 has 32 divisors (see below), whose sum is σ = 348376746960. Its totient is φ = 60995251200.

The previous prime is 153661118827. The next prime is 153661118851. The reversal of 153661118840 is 48811166351.

It is a super-2 number, since 2×153661118840² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 153661118791 and 153661118800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14657081 + ... + 14667560.

Almost surely, 2^153661118840 is an apocalyptic number.

153661118840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153661118840 is an abundant number, since it is smaller than the sum of its proper divisors (194715628120).

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

153661118840 is a wasteful number, since it uses less digits than its factorization.

153661118840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29324783 (or 29324779 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 153661118840 in words is "one hundred fifty-three billion, six hundred sixty-one million, one hundred eighteen thousand, eight hundred forty".