11261522151 has 48 divisors (see below), whose sum is σ = 18358149600. Its totient is φ = 6817789440.

The previous prime is 11261522149. The next prime is 11261522183. The reversal of 11261522151 is 15122516211.

It is a happy number.

11261522151 is a `hidden beast` number, since 1 + 12 + 615 + 22 + 15 + 1 = 666.

It is not a de Polignac number, because 11261522151 - 2¹ = 11261522149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11261522651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5582295 + ... + 5584311.

It is an arithmetic number, because the mean of its divisors is an integer number (382461450).

Almost surely, 2^11261522151 is an apocalyptic number.

11261522151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11261522151 is a deficient number, since it is larger than the sum of its proper divisors (7096627449).

11261522151 is a wasteful number, since it uses less digits than its factorization.

11261522151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757 (or 3740 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The spelling of 11261522151 in words is "eleven billion, two hundred sixty-one million, five hundred twenty-two thousand, one hundred fifty-one".