1630554541440 has 128 divisors (see below), whose sum is σ = 5669882910720. Its totient is φ = 395285944320.

The previous prime is 1630554541423. The next prime is 1630554541477. The reversal of 1630554541440 is 441454550361.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1630554541440² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1630554541392 and 1630554541401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38581024 + ... + 38623263.

It is an arithmetic number, because the mean of its divisors is an integer number (44295960240).

Almost surely, 2^{1630554541440} is an apocalyptic number.

1630554541440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630554541440 is an abundant number, since it is smaller than the sum of its proper divisors (4039328369280).

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

1630554541440 is a wasteful number, since it uses less digits than its factorization.

1630554541440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77204320 (or 77204308 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 1630554541440 in words is "one trillion, six hundred thirty billion, five hundred fifty-four million, five hundred forty-one thousand, four hundred forty".