11662254121 has 24 divisors (see below), whose sum is σ = 14025920384. Its totient is φ = 9497822400.

The previous prime is 11662254077. The next prime is 11662254137. The reversal of 11662254121 is 12145226611.

It is a happy number.

It is not a de Polignac number, because 11662254121 - 2¹¹ = 11662252073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11662224121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 548725 + ... + 569581.

Almost surely, 2^11662254121 is an apocalyptic number.

It is an amenable number.

11662254121 is a deficient number, since it is larger than the sum of its proper divisors (2363666263).

11662254121 is a wasteful number, since it uses less digits than its factorization.

11662254121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21061 (or 21038 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The spelling of 11662254121 in words is "eleven billion, six hundred sixty-two million, two hundred fifty-four thousand, one hundred twenty-one".