30156553021 has 8 divisors (see below), whose sum is σ = 34465901184. Its totient is φ = 25847522160.

The previous prime is 30156552991. The next prime is 30156553039. The reversal of 30156553021 is 12035565103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30156553021 - 2¹⁵ = 30156520253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30156553081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181536 + ... + 305398.

It is an arithmetic number, because the mean of its divisors is an integer number (4308237648).

Almost surely, 2^30156553021 is an apocalyptic number.

It is an amenable number.

30156553021 is a deficient number, since it is larger than the sum of its proper divisors (4309348163).

30156553021 is a wasteful number, since it uses less digits than its factorization.

30156553021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158651.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 30156553021 in words is "thirty billion, one hundred fifty-six million, five hundred fifty-three thousand, twenty-one".