1655442324440 has 64 divisors (see below), whose sum is σ = 3763683986400. Its totient is φ = 655289367552.

The previous prime is 1655442324433. The next prime is 1655442324457. The reversal of 1655442324440 is 444232445561.

It is a junction number, because it is equal to n+sod(n) for n = 1655442324391 and 1655442324400.

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, 974306 + ... + 2064014.

Almost surely, 2^{1655442324440} is an apocalyptic number.

1655442324440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1655442324440 is an abundant number, since it is smaller than the sum of its proper divisors (2108241661960).

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

1655442324440 is a wasteful number, since it uses less digits than its factorization.

1655442324440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090116 (or 1090112 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 44.

The spelling of 1655442324440 in words is "one trillion, six hundred fifty-five billion, four hundred forty-two million, three hundred twenty-four thousand, four hundred forty".