657429180380 has 48 divisors (see below), whose sum is σ = 1579953876480. Its totient is φ = 225100884288.

The previous prime is 657429180341. The next prime is 657429180403. The reversal of 657429180380 is 83081924756.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3056090 + ... + 3264129.

It is an arithmetic number, because the mean of its divisors is an integer number (32915705760).

It is a 1-persistent number, because it is pandigital, but 2⋅657429180380 = 1314858360760 is not.

Almost surely, 2^657429180380 is an apocalyptic number.

It is an amenable number.

657429180380 is an abundant number, since it is smaller than the sum of its proper divisors (922524696100).

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

657429180380 is a wasteful number, since it uses less digits than its factorization.

657429180380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6320978 (or 6320976 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 657429180380 in words is "six hundred fifty-seven billion, four hundred twenty-nine million, one hundred eighty thousand, three hundred eighty".