260102664 has 40 divisors (see below), whose sum is σ = 728530110. Its totient is φ = 86700672.

The previous prime is 260102663. The next prime is 260102677. The reversal of 260102664 is 466201062.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 223741764 + 36360900 = 14958^2 + 6030^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260102663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 200049 + ... + 201344.

Almost surely, 2^260102664 is an apocalyptic number.

260102664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

260102664 is an abundant number, since it is smaller than the sum of its proper divisors (468427446).

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

260102664 is a wasteful number, since it uses less digits than its factorization.

260102664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401411 (or 401398 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 260102664 is about 16127.6986578991. The cubic root of 260102664 is about 638.3344256803.

The spelling of 260102664 in words is "two hundred sixty million, one hundred two thousand, six hundred sixty-four".