1620610867200 has 1344 divisors, whose sum is σ = 6211489939200. Its totient is φ = 369465753600.

The previous prime is 1620610867189. The next prime is 1620610867223. The reversal of 1620610867200 is 27680160261.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8953651110 + ... + 8953651290.

It is an arithmetic number, because the mean of its divisors is an integer number (4621644300).

Almost surely, 2^{1620610867200} is an apocalyptic number.

1620610867200 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 1620610867200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3105744969600).

1620610867200 is an abundant number, since it is smaller than the sum of its proper divisors (4590879072000).

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

1620610867200 is a wasteful number, since it uses less digits than its factorization.

1620610867200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 1620610867200 in words is "one trillion, six hundred twenty billion, six hundred ten million, eight hundred sixty-seven thousand, two hundred".