1421154522552 has 32 divisors (see below), whose sum is σ = 3761879619600. Its totient is φ = 445852399104.

The previous prime is 1421154522547. The next prime is 1421154522583. The reversal of 1421154522552 is 2552254511241.

It is a self number, because there is not a number n which added to its sum of digits gives 1421154522552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1741610527 + ... + 1741611342.

Almost surely, 2^{1421154522552} is an apocalyptic number.

1421154522552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421154522552 is an abundant number, since it is smaller than the sum of its proper divisors (2340725097048).

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

1421154522552 is a wasteful number, since it uses less digits than its factorization.

1421154522552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483221895 (or 3483221891 counting only the distinct ones).

The product of its digits is 160000, while the sum is 39.

The spelling of 1421154522552 in words is "one trillion, four hundred twenty-one billion, one hundred fifty-four million, five hundred twenty-two thousand, five hundred fifty-two".