97220071641 has 32 divisors (see below), whose sum is σ = 162062899200. Its totient is φ = 50363210880.

The previous prime is 97220071639. The next prime is 97220071649. The reversal of 97220071641 is 14617002279.

It is not a de Polignac number, because 97220071641 - 2¹ = 97220071639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97220071641.

It is not an unprimeable number, because it can be changed into a prime (97220071649) 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, 503236 + ... + 669093.

It is an arithmetic number, because the mean of its divisors is an integer number (5064465600).

Almost surely, 2^97220071641 is an apocalyptic number.

It is an amenable number.

97220071641 is a deficient number, since it is larger than the sum of its proper divisors (64842827559).

97220071641 is a wasteful number, since it uses less digits than its factorization.

97220071641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172709.

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 97220071641 in words is "ninety-seven billion, two hundred twenty million, seventy-one thousand, six hundred forty-one".