11621220766 has 8 divisors (see below), whose sum is σ = 17432478360. Its totient is φ = 5810394648.

The previous prime is 11621220763. The next prime is 11621220803. The reversal of 11621220766 is 66702212611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621220763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29001 + ... + 155188.

It is an arithmetic number, because the mean of its divisors is an integer number (2179059795).

Almost surely, 2^11621220766 is an apocalyptic number.

11621220766 is a deficient number, since it is larger than the sum of its proper divisors (5811257594).

11621220766 is a wasteful number, since it uses less digits than its factorization.

11621220766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215738.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 11621220766 in words is "eleven billion, six hundred twenty-one million, two hundred twenty thousand, seven hundred sixty-six".