356109555901 has 12 divisors (see below), whose sum is σ = 391575218076. Its totient is φ = 323612717120.

The previous prime is 356109555859. The next prime is 356109555917. The reversal of 356109555901 is 109555901653.

It can be written as a sum of positive squares in 2 ways, for example, as 93238011801 + 262871544100 = 305349^2 + 512710^2 .

It is not a de Polignac number, because 356109555901 - 2¹⁹ = 356109031613 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 (356109555931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240286 + ... + 877471.

It is an arithmetic number, because the mean of its divisors is an integer number (32631268173).

Almost surely, 2^356109555901 is an apocalyptic number.

It is an amenable number.

356109555901 is a deficient number, since it is larger than the sum of its proper divisors (35465662175).

356109555901 is a wasteful number, since it uses less digits than its factorization.

356109555901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120412 (or 1120401 counting only the distinct ones).

The product of its (nonzero) digits is 911250, while the sum is 49.

The spelling of 356109555901 in words is "three hundred fifty-six billion, one hundred nine million, five hundred fifty-five thousand, nine hundred one".