1623005621650 has 24 divisors (see below), whose sum is σ = 3450046236480. Its totient is φ = 556459070160.

The previous prime is 1623005621609. The next prime is 1623005621651. The reversal of 1623005621650 is 561265003261.

It is not an unprimeable number, because it can be changed into a prime (1623005621651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2318579110 + ... + 2318579809.

It is an arithmetic number, because the mean of its divisors is an integer number (143751926520).

Almost surely, 2^{1623005621650} is an apocalyptic number.

1623005621650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1623005621650 is an abundant number, since it is smaller than the sum of its proper divisors (1827040614830).

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

1623005621650 is a wasteful number, since it uses less digits than its factorization.

1623005621650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637158938 (or 4637158933 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 1623005621650 in words is "one trillion, six hundred twenty-three billion, five million, six hundred twenty-one thousand, six hundred fifty".