1516671705 has 32 divisors (see below), whose sum is σ = 2486854656. Its totient is φ = 788889024.

The previous prime is 1516671703. The next prime is 1516671721. The reversal of 1516671705 is 5071766151.

It is not a de Polignac number, because 1516671705 - 2¹ = 1516671703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1516671703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 568204 + ... + 570866.

It is an arithmetic number, because the mean of its divisors is an integer number (77714208).

Almost surely, 2^1516671705 is an apocalyptic number.

1516671705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1516671705 is a deficient number, since it is larger than the sum of its proper divisors (970182951).

1516671705 is a wasteful number, since it uses less digits than its factorization.

1516671705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597.

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 1516671705 is about 38944.4695046678. The cubic root of 1516671705 is about 1148.9395908707.

The spelling of 1516671705 in words is "one billion, five hundred sixteen million, six hundred seventy-one thousand, seven hundred five".