1620622967040 has 1296 divisors, whose sum is σ = 7217318279808. Its totient is φ = 328458240000.

The previous prime is 1620622967017. The next prime is 1620622967053. The reversal of 1620622967040 is 407692260261.

1620622967040 is a `hidden beast` number, since 16 + 2 + 0 + 622 + 9 + 6 + 7 + 0 + 4 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 400053015 + ... + 400057065.

Almost surely, 2^{1620622967040} is an apocalyptic number.

1620622967040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1620622967040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3608659139904).

1620622967040 is an abundant number, since it is smaller than the sum of its proper divisors (5596695312768).

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

1620622967040 is a wasteful number, since it uses less digits than its factorization.

1620622967040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148 (or 4120 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 1620622967040 in words is "one trillion, six hundred twenty billion, six hundred twenty-two million, nine hundred sixty-seven thousand, forty".