1353580620945 has 96 divisors (see below), whose sum is σ = 2598841627776. Its totient is φ = 599550336000.

The previous prime is 1353580620923. The next prime is 1353580620961. The reversal of 1353580620945 is 5490260853531.

It is not a de Polignac number, because 1353580620945 - 2⁷ = 1353580620817 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2778645 + ... + 3229245.

It is an arithmetic number, because the mean of its divisors is an integer number (27071266956).

Almost surely, 2^{1353580620945} is an apocalyptic number.

1353580620945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1353580620945 is a deficient number, since it is larger than the sum of its proper divisors (1245261006831).

1353580620945 is a wasteful number, since it uses less digits than its factorization.

1353580620945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450751 (or 450744 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 1353580620945 in words is "one trillion, three hundred fifty-three billion, five hundred eighty million, six hundred twenty thousand, nine hundred forty-five".