1615161112004 has 24 divisors (see below), whose sum is σ = 3085405932000. Its totient is φ = 733707823680.

The previous prime is 1615161111989. The next prime is 1615161112013. The reversal of 1615161112004 is 4002111615161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11336354 + ... + 11477945.

It is an arithmetic number, because the mean of its divisors is an integer number (128558580500).

Almost surely, 2^{1615161112004} is an apocalyptic number.

It is an amenable number.

1615161112004 is a deficient number, since it is larger than the sum of its proper divisors (1470244819996).

1615161112004 is a wasteful number, since it uses less digits than its factorization.

1615161112004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22815923 (or 22815921 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

Adding to 1615161112004 its reverse (4002111615161), we get a palindrome (5617272727165).

The spelling of 1615161112004 in words is "one trillion, six hundred fifteen billion, one hundred sixty-one million, one hundred twelve thousand, four".