1661713310 has 16 divisors (see below), whose sum is σ = 3004149600. Its totient is φ = 661781856.

The previous prime is 1661713309. The next prime is 1661713363. The reversal of 1661713310 is 133171661.

It is a super-2 number, since 2×1661713310² = 5522582249262312200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360530 + ... + 365109.

It is an arithmetic number, because the mean of its divisors is an integer number (187759350).

Almost surely, 2^1661713310 is an apocalyptic number.

1661713310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1661713310 is a deficient number, since it is larger than the sum of its proper divisors (1342436290).

1661713310 is a wasteful number, since it uses less digits than its factorization.

1661713310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725875.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1661713310 is about 40764.1179225063. The cubic root of 1661713310 is about 1184.4553652139.

Adding to 1661713310 its reverse (133171661), we get a palindrome (1794884971).

The spelling of 1661713310 in words is "one billion, six hundred sixty-one million, seven hundred thirteen thousand, three hundred ten".