1401553466740 has 48 divisors (see below), whose sum is σ = 3418871428224. Its totient is φ = 472655030400.

The previous prime is 1401553466713. The next prime is 1401553466813. The reversal of 1401553466740 is 476643551041.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 82049626 + ... + 82066705.

It is an arithmetic number, because the mean of its divisors is an integer number (71226488088).

Almost surely, 2^{1401553466740} is an apocalyptic number.

1401553466740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401553466740 is an abundant number, since it is smaller than the sum of its proper divisors (2017317961484).

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

1401553466740 is a wasteful number, since it uses less digits than its factorization.

1401553466740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164116408 (or 164116406 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 1401553466740 in words is "one trillion, four hundred one billion, five hundred fifty-three million, four hundred sixty-six thousand, seven hundred forty".