1320077075757 has 32 divisors (see below), whose sum is σ = 1940762571264. Its totient is φ = 791455752000.

The previous prime is 1320077075731. The next prime is 1320077075773. The reversal of 1320077075757 is 7575707700231.

It is not a de Polignac number, because 1320077075757 - 2⁶ = 1320077075693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320077070757) 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, 3789438 + ... + 4123104.

It is an arithmetic number, because the mean of its divisors is an integer number (60648830352).

Almost surely, 2^{1320077075757} is an apocalyptic number.

It is an amenable number.

1320077075757 is a deficient number, since it is larger than the sum of its proper divisors (620685495507).

1320077075757 is a wasteful number, since it uses less digits than its factorization.

1320077075757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334969.

The product of its (nonzero) digits is 2521050, while the sum is 51.

The spelling of 1320077075757 in words is "one trillion, three hundred twenty billion, seventy-seven million, seventy-five thousand, seven hundred fifty-seven".