705665653755 has 32 divisors (see below), whose sum is σ = 1130483692800. Its totient is φ = 375882429312.

The previous prime is 705665653739. The next prime is 705665653757. The reversal of 705665653755 is 557356566507.

It is not a de Polignac number, because 705665653755 - 2⁴ = 705665653739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (705665653757) 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, 47941657 + ... + 47956373.

It is an arithmetic number, because the mean of its divisors is an integer number (35327615400).

Almost surely, 2^705665653755 is an apocalyptic number.

705665653755 is a deficient number, since it is larger than the sum of its proper divisors (424818039045).

705665653755 is a wasteful number, since it uses less digits than its factorization.

705665653755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18523.

The product of its (nonzero) digits is 99225000, while the sum is 60.

The spelling of 705665653755 in words is "seven hundred five billion, six hundred sixty-five million, six hundred fifty-three thousand, seven hundred fifty-five".