621466005240 has 96 divisors (see below), whose sum is σ = 2074352791680. Its totient is φ = 161245230336.

The previous prime is 621466005227. The next prime is 621466005241. The reversal of 621466005240 is 42500664126.

621466005240 is a `hidden beast` number, since 6 + 2 + 1 + 4 + 6 + 600 + 5 + 2 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 621466005195 and 621466005204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621466005241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23314984 + ... + 23341623.

It is an arithmetic number, because the mean of its divisors is an integer number (21607841580).

Almost surely, 2^621466005240 is an apocalyptic number.

621466005240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

621466005240 is an abundant number, since it is smaller than the sum of its proper divisors (1452886786440).

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

621466005240 is a wasteful number, since it uses less digits than its factorization.

621466005240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46656661 (or 46656654 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 621466005240 its reverse (42500664126), we get a palindrome (663966669366).

It can be divided in two parts, 62146 and 6005240, that added together give a triangular number (6067386 = T₃₄₈₃).

The spelling of 621466005240 in words is "six hundred twenty-one billion, four hundred sixty-six million, five thousand, two hundred forty".