11621411145421 has 32 divisors (see below), whose sum is σ = 14862134476800. Its totient is φ = 9008232735600.

The previous prime is 11621411145413. The next prime is 11621411145451. The reversal of 11621411145421 is 12454111412611.

It is not a de Polignac number, because 11621411145421 - 2³ = 11621411145413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621411145451) 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, 7342581 + ... + 8783866.

It is an arithmetic number, because the mean of its divisors is an integer number (464441702400).

Almost surely, 2^{11621411145421} is an apocalyptic number.

11621411145421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11621411145421 is a deficient number, since it is larger than the sum of its proper divisors (3240723331379).

11621411145421 is a wasteful number, since it uses less digits than its factorization.

11621411145421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16126670 (or 16126656 counting only the distinct ones).

The product of its digits is 7680, while the sum is 34.

The spelling of 11621411145421 in words is "eleven trillion, six hundred twenty-one billion, four hundred eleven million, one hundred forty-five thousand, four hundred twenty-one".