20015350415 has 8 divisors (see below), whose sum is σ = 24793208448. Its totient is φ = 15495755040.

The previous prime is 20015350409. The next prime is 20015350417. The reversal of 20015350415 is 51405351002.

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

It is not a de Polignac number, because 20015350415 - 2¹⁰ = 20015349391 is a prime.

It is a super-2 number, since 2×20015350415² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20015350417) 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, 64565492 + ... + 64565801.

It is an arithmetic number, because the mean of its divisors is an integer number (3099151056).

Almost surely, 2^20015350415 is an apocalyptic number.

20015350415 is a deficient number, since it is larger than the sum of its proper divisors (4777858033).

20015350415 is a wasteful number, since it uses less digits than its factorization.

20015350415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129131329.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 20015350415 in words is "twenty billion, fifteen million, three hundred fifty thousand, four hundred fifteen".