11257554612 has 24 divisors (see below), whose sum is σ = 26291690656. Its totient is φ = 3749080608.

The previous prime is 11257554611. The next prime is 11257554617. The reversal of 11257554612 is 21645575211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11257554611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416038 + ... + 442269.

Almost surely, 2^11257554612 is an apocalyptic number.

11257554612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11257554612 is an abundant number, since it is smaller than the sum of its proper divisors (15034136044).

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

11257554612 is a wasteful number, since it uses less digits than its factorization.

11257554612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859407 (or 859405 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The spelling of 11257554612 in words is "eleven billion, two hundred fifty-seven million, five hundred fifty-four thousand, six hundred twelve".