660340554532402 has 16 divisors (see below), whose sum is σ = 995698580212224. Its totient is φ = 328441034142000.

The previous prime is 660340554532357. The next prime is 660340554532409. The reversal of 660340554532402 is 204235455043066.

It is not an unprimeable number, because it can be changed into a prime (660340554532409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265586152 + ... + 268060972.

It is an arithmetic number, because the mean of its divisors is an integer number (62231161263264).

Almost surely, 2^{660340554532402} is an apocalyptic number.

660340554532402 is a deficient number, since it is larger than the sum of its proper divisors (335358025679822).

660340554532402 is a wasteful number, since it uses less digits than its factorization.

660340554532402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173505.

The product of its (nonzero) digits is 10368000, while the sum is 49.

The spelling of 660340554532402 in words is "six hundred sixty trillion, three hundred forty billion, five hundred fifty-four million, five hundred thirty-two thousand, four hundred two".