20154543050 has 48 divisors (see below), whose sum is σ = 38741568000. Its totient is φ = 7792718400.

The previous prime is 20154543049. The next prime is 20154543053. The reversal of 20154543050 is 5034545102.

It is not an unprimeable number, because it can be changed into a prime (20154543053) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1417376 + ... + 1431524.

It is an arithmetic number, because the mean of its divisors is an integer number (807116000).

Almost surely, 2^20154543050 is an apocalyptic number.

20154543050 is a deficient number, since it is larger than the sum of its proper divisors (18587024950).

20154543050 is a wasteful number, since it uses less digits than its factorization.

20154543050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15111 (or 15106 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20154543050 in words is "twenty billion, one hundred fifty-four million, five hundred forty-three thousand, fifty".