1355261653620 has 96 divisors (see below), whose sum is σ = 4818708115200. Its totient is φ = 309774091392.

The previous prime is 1355261653591. The next prime is 1355261653649. The reversal of 1355261653620 is 263561625531.

1355261653620 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 2 + 6 + 16 + 5 + 3 + 620 = 666.

It is an interprime number because it is at equal distance from previous prime (1355261653591) and next prime (1355261653649).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179263635 + ... + 179271194.

It is an arithmetic number, because the mean of its divisors is an integer number (50194876200).

Almost surely, 2^{1355261653620} is an apocalyptic number.

1355261653620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1355261653620 is an abundant number, since it is smaller than the sum of its proper divisors (3463446461580).

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

1355261653620 is a wasteful number, since it uses less digits than its factorization.

1355261653620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358534854 (or 358534846 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 1355261653620 in words is "one trillion, three hundred fifty-five billion, two hundred sixty-one million, six hundred fifty-three thousand, six hundred twenty".