11621406011356 has 24 divisors (see below), whose sum is σ = 20484996529536. Its totient is φ = 5768700678000.

The previous prime is 11621406011323. The next prime is 11621406011393. The reversal of 11621406011356 is 65311060412611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18543736 + ... + 19160191.

It is an arithmetic number, because the mean of its divisors is an integer number (853541522064).

Almost surely, 2^{11621406011356} is an apocalyptic number.

It is an amenable number.

11621406011356 is a deficient number, since it is larger than the sum of its proper divisors (8863590518180).

11621406011356 is a wasteful number, since it uses less digits than its factorization.

11621406011356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37704489 (or 37704487 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

Adding to 11621406011356 its reverse (65311060412611), we get a palindrome (76932466423967).

The spelling of 11621406011356 in words is "eleven trillion, six hundred twenty-one billion, four hundred six million, eleven thousand, three hundred fifty-six".