2251133420636 has 24 divisors (see below), whose sum is σ = 4002272862336. Its totient is φ = 1107684854640.

The previous prime is 2251133420629. The next prime is 2251133420671. The reversal of 2251133420636 is 6360243311522.

It is a super-2 number, since 2×2251133420636² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2251133420636.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7090106 + ... + 7400801.

It is an arithmetic number, because the mean of its divisors is an integer number (166761369264).

Almost surely, 2^{2251133420636} is an apocalyptic number.

It is an amenable number.

2251133420636 is a deficient number, since it is larger than the sum of its proper divisors (1751139441700).

2251133420636 is a wasteful number, since it uses less digits than its factorization.

2251133420636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14491529 (or 14491527 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 2251133420636 in words is "two trillion, two hundred fifty-one billion, one hundred thirty-three million, four hundred twenty thousand, six hundred thirty-six".