37091601221 has 8 divisors (see below), whose sum is σ = 37174417344. Its totient is φ = 37008840960.

The previous prime is 37091601191. The next prime is 37091601227. The reversal of 37091601221 is 12210619073.

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

It is a cyclic number.

It is not a de Polignac number, because 37091601221 - 2³⁴ = 19911732037 is a prime.

It is a super-2 number, since 2×37091601221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37091601227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493576 + ... + 1518206.

It is an arithmetic number, because the mean of its divisors is an integer number (4646802168).

Almost surely, 2^37091601221 is an apocalyptic number.

It is an amenable number.

37091601221 is a deficient number, since it is larger than the sum of its proper divisors (82816123).

37091601221 is a wasteful number, since it uses less digits than its factorization.

37091601221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27931.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 37091601221 in words is "thirty-seven billion, ninety-one million, six hundred one thousand, two hundred twenty-one".