1615630706404 has 48 divisors (see below), whose sum is σ = 3333903664896. Its totient is φ = 675385516800.

The previous prime is 1615630706399. The next prime is 1615630706407. The reversal of 1615630706404 is 4046070365161.

It is a super-2 number, since 2×1615630706404² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1615630706407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5056297 + ... + 5366320.

It is an arithmetic number, because the mean of its divisors is an integer number (69456326352).

Almost surely, 2^{1615630706404} is an apocalyptic number.

It is an amenable number.

1615630706404 is an abundant number, since it is smaller than the sum of its proper divisors (1718272958492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1615630706404 is a wasteful number, since it uses less digits than its factorization.

1615630706404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10422916 (or 10422914 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 1615630706404 in words is "one trillion, six hundred fifteen billion, six hundred thirty million, seven hundred six thousand, four hundred four".