155650063788 has 72 divisors (see below), whose sum is σ = 398680289280. Its totient is φ = 51194314080.

The previous prime is 155650063753. The next prime is 155650063813. The reversal of 155650063788 is 887360056551.

155650063788 is a `hidden beast` number, since 1 + 5 + 5 + 6 + 500 + 63 + 78 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4724533 + ... + 4757363.

It is an arithmetic number, because the mean of its divisors is an integer number (5537226240).

Almost surely, 2^155650063788 is an apocalyptic number.

155650063788 is a gapful number since it is divisible by the number (18) 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 155650063788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199340144640).

155650063788 is an abundant number, since it is smaller than the sum of its proper divisors (243030225492).

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

155650063788 is a wasteful number, since it uses less digits than its factorization.

155650063788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34587 (or 34582 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 155650063788 in words is "one hundred fifty-five billion, six hundred fifty million, sixty-three thousand, seven hundred eighty-eight".