2101366631365 has 16 divisors (see below), whose sum is σ = 2673002430000. Its totient is φ = 1580409487360.

The previous prime is 2101366631359. The next prime is 2101366631401. The reversal of 2101366631365 is 5631366631012.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 57661936641 + 2043704694724 = 240129^2 + 1429582^2 .

It is not a de Polignac number, because 2101366631365 - 2¹³ = 2101366623173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13955740 + ... + 14105509.

It is an arithmetic number, because the mean of its divisors is an integer number (167062651875).

Almost surely, 2^{2101366631365} is an apocalyptic number.

It is an amenable number.

2101366631365 is a deficient number, since it is larger than the sum of its proper divisors (571635798635).

2101366631365 is a wasteful number, since it uses less digits than its factorization.

2101366631365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28062152.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 2101366631365 in words is "two trillion, one hundred one billion, three hundred sixty-six million, six hundred thirty-one thousand, three hundred sixty-five".