15216507077 has 8 divisors (see below), whose sum is σ = 15719589120. Its totient is φ = 14714189280.

The previous prime is 15216507073. The next prime is 15216507127. The reversal of 15216507077 is 77070561251.

It is a happy number.

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 15216507077 - 2² = 15216507073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15216507073) 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 7 ways as a sum of consecutive naturals, for example, 150443 + ... + 230360.

It is an arithmetic number, because the mean of its divisors is an integer number (1964948640).

Almost surely, 2^15216507077 is an apocalyptic number.

It is an amenable number.

15216507077 is a deficient number, since it is larger than the sum of its proper divisors (503082043).

15216507077 is a wasteful number, since it uses less digits than its factorization.

15216507077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382123.

The product of its (nonzero) digits is 102900, while the sum is 41.

The spelling of 15216507077 in words is "fifteen billion, two hundred sixteen million, five hundred seven thousand, seventy-seven".