1655203361644 has 12 divisors (see below), whose sum is σ = 3310406723344. Its totient is φ = 709372869264.

The previous prime is 1655203361611. The next prime is 1655203361677. The reversal of 1655203361644 is 4461633025561.

It is an interprime number because it is at equal distance from previous prime (1655203361611) and next prime (1655203361677).

1655203361644 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1655203361594 and 1655203361603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29557202859 + ... + 29557202914.

Almost surely, 2^{1655203361644} is an apocalyptic number.

1655203361644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1655203361644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1655203361644 is a wasteful number, since it uses less digits than its factorization.

1655203361644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59114405784 (or 59114405782 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 1655203361644 in words is "one trillion, six hundred fifty-five billion, two hundred three million, three hundred sixty-one thousand, six hundred forty-four".