411621550640 has 20 divisors (see below), whose sum is σ = 957020105424. Its totient is φ = 164648620224.

The previous prime is 411621550547. The next prime is 411621550661. The reversal of 411621550640 is 46055126114.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 411621550640.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572634612 + ... + 2572634771.

Almost surely, 2^411621550640 is an apocalyptic number.

411621550640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

411621550640 is an abundant number, since it is smaller than the sum of its proper divisors (545398554784).

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

411621550640 is a wasteful number, since it uses less digits than its factorization.

411621550640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145269396 (or 5145269390 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 411621550640 its reverse (46055126114), we get a palindrome (457676676754).

The spelling of 411621550640 in words is "four hundred eleven billion, six hundred twenty-one million, five hundred fifty thousand, six hundred forty".