2261634215512 has 16 divisors (see below), whose sum is σ = 4846359033360. Its totient is φ = 969271806624.

The previous prime is 2261634215461. The next prime is 2261634215527. The reversal of 2261634215512 is 2155124361622.

It is a super-2 number, since 2×2261634215512² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20193162583 + ... + 20193162694.

It is an arithmetic number, because the mean of its divisors is an integer number (302897439585).

Almost surely, 2^{2261634215512} is an apocalyptic number.

It is an amenable number.

2261634215512 is an abundant number, since it is smaller than the sum of its proper divisors (2584724817848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2261634215512 is a wasteful number, since it uses less digits than its factorization.

2261634215512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40386325290 (or 40386325286 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The spelling of 2261634215512 in words is "two trillion, two hundred sixty-one billion, six hundred thirty-four million, two hundred fifteen thousand, five hundred twelve".