20154122088 has 32 divisors (see below), whose sum is σ = 50522616960. Its totient is φ = 6699732480.

The previous prime is 20154122069. The next prime is 20154122099. The reversal of 20154122088 is 88022145102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135273 + ... + 1152888.

It is an arithmetic number, because the mean of its divisors is an integer number (1578831780).

Almost surely, 2^20154122088 is an apocalyptic number.

It is an amenable number.

20154122088 is an abundant number, since it is smaller than the sum of its proper divisors (30368494872).

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

20154122088 is a wasteful number, since it uses less digits than its factorization.

20154122088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288537 (or 2288533 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The spelling of 20154122088 in words is "twenty billion, one hundred fifty-four million, one hundred twenty-two thousand, eighty-eight".