15345020651 has 4 divisors (see below), whose sum is σ = 15346866072. Its totient is φ = 15343175232.

The previous prime is 15345020629. The next prime is 15345020681. The reversal of 15345020651 is 15602054351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15345020651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15345020681) 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 3 ways as a sum of consecutive naturals, for example, 910181 + ... + 926886.

It is an arithmetic number, because the mean of its divisors is an integer number (3836716518).

Almost surely, 2^15345020651 is an apocalyptic number.

15345020651 is a deficient number, since it is larger than the sum of its proper divisors (1845421).

15345020651 is an equidigital number, since it uses as much as digits as its factorization.

15345020651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845420.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 15345020651 in words is "fifteen billion, three hundred forty-five million, twenty thousand, six hundred fifty-one".