11146620381 has 32 divisors (see below), whose sum is σ = 16137031680. Its totient is φ = 6803289024.

The previous prime is 11146620377. The next prime is 11146620391. The reversal of 11146620381 is 18302664111.

It is not a de Polignac number, because 11146620381 - 2² = 11146620377 is a prime.

It is a super-2 number, since 2×11146620381² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11146620301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2449150 + ... + 2453696.

It is an arithmetic number, because the mean of its divisors is an integer number (504282240).

Almost surely, 2^11146620381 is an apocalyptic number.

It is an amenable number.

11146620381 is a deficient number, since it is larger than the sum of its proper divisors (4990411299).

11146620381 is a wasteful number, since it uses less digits than its factorization.

11146620381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065.

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 11146620381 in words is "eleven billion, one hundred forty-six million, six hundred twenty thousand, three hundred eighty-one".