1660926464 has 40 divisors (see below), whose sum is σ = 3374917920. Its totient is φ = 816372736.

The previous prime is 1660926457. The next prime is 1660926473. The reversal of 1660926464 is 4646290661.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2717 + ... + 57699.

It is an arithmetic number, because the mean of its divisors is an integer number (84372948).

Almost surely, 2^1660926464 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 1660926464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687458960).

1660926464 is an abundant number, since it is smaller than the sum of its proper divisors (1713991456).

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

1660926464 is an frugal number, since it uses more digits than its factorization.

1660926464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55060 (or 55044 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 1660926464 is about 40754.4655712721. The cubic root of 1660926464 is about 1184.2683832794.

The spelling of 1660926464 in words is "one billion, six hundred sixty million, nine hundred twenty-six thousand, four hundred sixty-four".