421655740000 has 120 divisors (see below), whose sum is σ = 1131640265448. Its totient is φ = 153329280000.

The previous prime is 421655739983. The next prime is 421655740027. The reversal of 421655740000 is 47556124.

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 19 ways as a sum of consecutive naturals, for example, 738309 + ... + 1178308.

Almost surely, 2^421655740000 is an apocalyptic number.

421655740000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421655740000 is an abundant number, since it is smaller than the sum of its proper divisors (709984525448).

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

421655740000 is a wasteful number, since it uses less digits than its factorization.

421655740000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916658 (or 1916635 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 421655740000 in words is "four hundred twenty-one billion, six hundred fifty-five million, seven hundred forty thousand".