1264664155630 has 24 divisors (see below), whose sum is σ = 2282976776808. Its totient is φ = 504407355888.

The previous prime is 1264664155561. The next prime is 1264664155637. The reversal of 1264664155630 is 365514664621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264664155637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 678937 + ... + 1729243.

It is an arithmetic number, because the mean of its divisors is an integer number (95124032367).

Almost surely, 2^{1264664155630} is an apocalyptic number.

1264664155630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264664155630 is a deficient number, since it is larger than the sum of its proper divisors (1018312621178).

1264664155630 is an equidigital number, since it uses as much as digits as its factorization.

1264664155630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051008 (or 1050661 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 1264664155630 in words is "one trillion, two hundred sixty-four billion, six hundred sixty-four million, one hundred fifty-five thousand, six hundred thirty".