37221766668 has 36 divisors (see below), whose sum is σ = 94168810008. Its totient is φ = 12396646080.

The previous prime is 37221766667. The next prime is 37221766691. The reversal of 37221766668 is 86666712273.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (37221766667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399321 + ... + 483632.

It is an arithmetic number, because the mean of its divisors is an integer number (2615800278).

Almost surely, 2^37221766668 is an apocalyptic number.

It is an amenable number.

37221766668 is an abundant number, since it is smaller than the sum of its proper divisors (56947043340).

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

37221766668 is a wasteful number, since it uses less digits than its factorization.

37221766668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884134 (or 884129 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 37221766668 in words is "thirty-seven billion, two hundred twenty-one million, seven hundred sixty-six thousand, six hundred sixty-eight".