1628167540440 has 128 divisors (see below), whose sum is σ = 5733161487360. Its totient is φ = 362094395904.

The previous prime is 1628167540423. The next prime is 1628167540457. The reversal of 1628167540440 is 440457618261.

It is an interprime number because it is at equal distance from previous prime (1628167540423) and next prime (1628167540457).

It is a self number, because there is not a number n which added to its sum of digits gives 1628167540440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26162092 + ... + 26224251.

It is an arithmetic number, because the mean of its divisors is an integer number (44790324120).

Almost surely, 2^{1628167540440} is an apocalyptic number.

1628167540440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1628167540440 is an abundant number, since it is smaller than the sum of its proper divisors (4104993946920).

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

1628167540440 is a wasteful number, since it uses less digits than its factorization.

1628167540440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52386401 (or 52386397 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 1628167540440 in words is "one trillion, six hundred twenty-eight billion, one hundred sixty-seven million, five hundred forty thousand, four hundred forty".