11542621145 has 32 divisors (see below), whose sum is σ = 15521514624. Its totient is φ = 8167334400.

The previous prime is 11542621073. The next prime is 11542621157. The reversal of 11542621145 is 54112624511.

It is a happy number.

It is not a de Polignac number, because 11542621145 - 2⁸ = 11542620889 is a prime.

It is a super-2 number, since 2×11542621145² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 834254 + ... + 847976.

It is an arithmetic number, because the mean of its divisors is an integer number (485047332).

Almost surely, 2^11542621145 is an apocalyptic number.

It is an amenable number.

11542621145 is a deficient number, since it is larger than the sum of its proper divisors (3978893479).

11542621145 is a wasteful number, since it uses less digits than its factorization.

11542621145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14153.

The product of its digits is 9600, while the sum is 32.

The spelling of 11542621145 in words is "eleven billion, five hundred forty-two million, six hundred twenty-one thousand, one hundred forty-five".