20078296815 has 8 divisors (see below), whose sum is σ = 32125274928. Its totient is φ = 10708424960.

The previous prime is 20078296813. The next prime is 20078296829. The reversal of 20078296815 is 51869287002.

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

It is not a de Polignac number, because 20078296815 - 2¹ = 20078296813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20078296813) 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, 669276546 + ... + 669276575.

It is an arithmetic number, because the mean of its divisors is an integer number (4015659366).

Almost surely, 2^20078296815 is an apocalyptic number.

20078296815 is a deficient number, since it is larger than the sum of its proper divisors (12046978113).

20078296815 is a wasteful number, since it uses less digits than its factorization.

20078296815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338553129.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 20078296815 in words is "twenty billion, seventy-eight million, two hundred ninety-six thousand, eight hundred fifteen".