1660893415 has 16 divisors (see below), whose sum is σ = 2026126656. Its totient is φ = 1306771200.

The previous prime is 1660893401. The next prime is 1660893419. The reversal of 1660893415 is 5143980661.

It is not a de Polignac number, because 1660893415 - 2¹⁵ = 1660860647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660893419) 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, 143899 + ... + 155011.

It is an arithmetic number, because the mean of its divisors is an integer number (126632916).

Almost surely, 2^1660893415 is an apocalyptic number.

1660893415 is a deficient number, since it is larger than the sum of its proper divisors (365233241).

1660893415 is a wasteful number, since it uses less digits than its factorization.

1660893415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11610.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1660893415 is about 40754.0601044853. The cubic root of 1660893415 is about 1184.2605283972.

The spelling of 1660893415 in words is "one billion, six hundred sixty million, eight hundred ninety-three thousand, four hundred fifteen".