1540000155554 has 16 divisors (see below), whose sum is σ = 2778947649600. Its totient is φ = 625263220944.

The previous prime is 1540000155553. The next prime is 1540000155557. The reversal of 1540000155554 is 4555510000451.

1540000155554 is a modest number, since divided by 155554 gives 154 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1540000155553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2894736869 + ... + 2894737400.

It is an arithmetic number, because the mean of its divisors is an integer number (173684228100).

Almost surely, 2^{1540000155554} is an apocalyptic number.

1540000155554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1540000155554 is a deficient number, since it is larger than the sum of its proper divisors (1238947494046).

1540000155554 is a wasteful number, since it uses less digits than its factorization.

1540000155554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5789474297.

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 1540000155554 in words is "one trillion, five hundred forty billion, one hundred fifty-five thousand, five hundred fifty-four".