15770138705 has 16 divisors (see below), whose sum is σ = 19475650560. Its totient is φ = 12249859392.

The previous prime is 15770138647. The next prime is 15770138777. The reversal of 15770138705 is 50783107751.

It is a cyclic number.

It is not a de Polignac number, because 15770138705 - 2¹⁰ = 15770137681 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2576 + ... + 177614.

It is an arithmetic number, because the mean of its divisors is an integer number (1217228160).

Almost surely, 2^15770138705 is an apocalyptic number.

It is an amenable number.

15770138705 is a deficient number, since it is larger than the sum of its proper divisors (3705511855).

15770138705 is a wasteful number, since it uses less digits than its factorization.

15770138705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175568.

The product of its (nonzero) digits is 205800, while the sum is 44.

The spelling of 15770138705 in words is "fifteen billion, seven hundred seventy million, one hundred thirty-eight thousand, seven hundred five".