1391661350232 has 32 divisors (see below), whose sum is σ = 3479187524400. Its totient is φ = 463882563584.

The previous prime is 1391661350231. The next prime is 1391661350257. The reversal of 1391661350232 is 2320531661931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391661350231) 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, 2972188 + ... + 3408404.

Almost surely, 2^{1391661350232} is an apocalyptic number.

1391661350232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1391661350232 is an abundant number, since it is smaller than the sum of its proper divisors (2087526174168).

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

1391661350232 is a wasteful number, since it uses less digits than its factorization.

1391661350232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569155 (or 569151 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The spelling of 1391661350232 in words is "one trillion, three hundred ninety-one billion, six hundred sixty-one million, three hundred fifty thousand, two hundred thirty-two".