1615000665500 has 24 divisors (see below), whose sum is σ = 3527161454544. Its totient is φ = 646000266000.

The previous prime is 1615000665493. The next prime is 1615000665529. The reversal of 1615000665500 is 55660005161.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 1615000166 + ... + 1615001165.

It is an arithmetic number, because the mean of its divisors is an integer number (146965060606).

Almost surely, 2^{1615000665500} is an apocalyptic number.

1615000665500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1615000665500 is an abundant number, since it is smaller than the sum of its proper divisors (1912160789044).

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

1615000665500 is a wasteful number, since it uses less digits than its factorization.

1615000665500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230001350 (or 3230001338 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 1615000665500 in words is "one trillion, six hundred fifteen billion, six hundred sixty-five thousand, five hundred".