297213649920 has 1408 divisors, whose sum is σ = 1237553971200. Its totient is φ = 67722117120.

The previous prime is 297213649919. The next prime is 297213649949. The reversal of 297213649920 is 29946312792.

It is a tau number, because it is divible by the number of its divisors (1408).

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2340264897 + ... + 2340265023.

Almost surely, 2^297213649920 is an apocalyptic number.

297213649920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 297213649920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618776985600).

297213649920 is an abundant number, since it is smaller than the sum of its proper divisors (940340321280).

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

297213649920 is a wasteful number, since it uses less digits than its factorization.

297213649920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 297213649920 in words is "two hundred ninety-seven billion, two hundred thirteen million, six hundred forty-nine thousand, nine hundred twenty".