1540551401630 has 16 divisors (see below), whose sum is σ = 2840626487664. Its totient is φ = 601190790720.

The previous prime is 1540551401603. The next prime is 1540551401633. The reversal of 1540551401630 is 361041550451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540551401633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1878720812 + ... + 1878721631.

It is an arithmetic number, because the mean of its divisors is an integer number (177539155479).

Almost surely, 2^{1540551401630} is an apocalyptic number.

1540551401630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1540551401630 is a deficient number, since it is larger than the sum of its proper divisors (1300075086034).

1540551401630 is a wasteful number, since it uses less digits than its factorization.

1540551401630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757442491.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 1540551401630 in words is "one trillion, five hundred forty billion, five hundred fifty-one million, four hundred one thousand, six hundred thirty".