1607121767640 has 64 divisors (see below), whose sum is σ = 4887411429600. Its totient is φ = 422695037952.

The previous prime is 1607121767627. The next prime is 1607121767683. The reversal of 1607121767640 is 467671217061.

It is a self number, because there is not a number n which added to its sum of digits gives 1607121767640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91721935 + ... + 91739454.

Almost surely, 2^{1607121767640} is an apocalyptic number.

1607121767640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1607121767640 is an abundant number, since it is smaller than the sum of its proper divisors (3280289661960).

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

1607121767640 is a wasteful number, since it uses less digits than its factorization.

1607121767640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183461476 (or 183461472 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 48.

The spelling of 1607121767640 in words is "one trillion, six hundred seven billion, one hundred twenty-one million, seven hundred sixty-seven thousand, six hundred forty".