20434625615 has 8 divisors (see below), whose sum is σ = 24797074320. Its totient is φ = 16164018112.

The previous prime is 20434625591. The next prime is 20434625621. The reversal of 20434625615 is 51652643402.

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 20434625615 - 2⁶ = 20434625551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22959809 + ... + 22960698.

It is an arithmetic number, because the mean of its divisors is an integer number (3099634290).

Almost surely, 2^20434625615 is an apocalyptic number.

20434625615 is a deficient number, since it is larger than the sum of its proper divisors (4362448705).

20434625615 is an equidigital number, since it uses as much as digits as its factorization.

20434625615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45920601.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 20434625615 in words is "twenty billion, four hundred thirty-four million, six hundred twenty-five thousand, six hundred fifteen".