20958154328 has 8 divisors (see below), whose sum is σ = 39296539380. Its totient is φ = 10479077160.

The previous prime is 20958154313. The next prime is 20958154351. The reversal of 20958154328 is 82345185902.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1309884638 + ... + 1309884653.

Almost surely, 2^20958154328 is an apocalyptic number.

It is an amenable number.

20958154328 is a deficient number, since it is larger than the sum of its proper divisors (18338385052).

20958154328 is a wasteful number, since it uses less digits than its factorization.

20958154328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619769297 (or 2619769293 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 20958154328 in words is "twenty billion, nine hundred fifty-eight million, one hundred fifty-four thousand, three hundred twenty-eight".