120022551666990 has 128 divisors (see below), whose sum is σ = 366738063851520. Its totient is φ = 27362097402624.

The previous prime is 120022551666973. The next prime is 120022551667087. The reversal of 120022551666990 is 99666155220021.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82179519 + ... + 83627258.

It is an arithmetic number, because the mean of its divisors is an integer number (2865141123840).

Almost surely, 2^{120022551666990} is an apocalyptic number.

120022551666990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120022551666990 is an abundant number, since it is smaller than the sum of its proper divisors (246715512184530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120022551666990 is a wasteful number, since it uses less digits than its factorization.

120022551666990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165807183 (or 165807177 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 120022551666990 in words is "one hundred twenty trillion, twenty-two billion, five hundred fifty-one million, six hundred sixty-six thousand, nine hundred ninety".