97662143920 has 160 divisors (see below), whose sum is σ = 250638940224. Its totient is φ = 35094528000.

The previous prime is 97662143897. The next prime is 97662143927. The reversal of 97662143920 is 2934126679.

It is not an unprimeable number, because it can be changed into a prime (97662143927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84702064 + ... + 84703216.

Almost surely, 2^97662143920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97662143920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125319470112).

97662143920 is an abundant number, since it is smaller than the sum of its proper divisors (152976796304).

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

97662143920 is a wasteful number, since it uses less digits than its factorization.

97662143920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231 (or 2225 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 97662143920 in words is "ninety-seven billion, six hundred sixty-two million, one hundred forty-three thousand, nine hundred twenty".