11621100045 has 32 divisors (see below), whose sum is σ = 19712332800. Its totient is φ = 5835870720.

The previous prime is 11621100031. The next prime is 11621100047. The reversal of 11621100045 is 54000112611.

It is not a de Polignac number, because 11621100045 - 2⁹ = 11621099533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11621099994 and 11621100030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621100047) 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, 320520 + ... + 354929.

It is an arithmetic number, because the mean of its divisors is an integer number (616010400).

Almost surely, 2^11621100045 is an apocalyptic number.

11621100045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11621100045 is a deficient number, since it is larger than the sum of its proper divisors (8091232755).

11621100045 is a wasteful number, since it uses less digits than its factorization.

11621100045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675525.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 11621100045 its reverse (54000112611), we get a palindrome (65621212656).

The spelling of 11621100045 in words is "eleven billion, six hundred twenty-one million, one hundred thousand, forty-five".