154999149481860 has 48 divisors (see below), whose sum is σ = 437838305458176. Its totient is φ = 40967326822912.

The previous prime is 154999149481849. The next prime is 154999149481871. The reversal of 154999149481860 is 68184941999451.

It is an interprime number because it is at equal distance from previous prime (154999149481849) and next prime (154999149481871).

It is a super-2 number, since 2×154999149481860² (a number of 29 digits) contains 22 as substring.

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, 11430608964 + ... + 11430622523.

It is an arithmetic number, because the mean of its divisors is an integer number (9121631363712).

Almost surely, 2^{154999149481860} is an apocalyptic number.

154999149481860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154999149481860 is an abundant number, since it is smaller than the sum of its proper divisors (282839155976316).

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

154999149481860 is a wasteful number, since it uses less digits than its factorization.

154999149481860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22861231612 (or 22861231610 counting only the distinct ones).

The product of its (nonzero) digits is 806215680, while the sum is 78.

The spelling of 154999149481860 in words is "one hundred fifty-four trillion, nine hundred ninety-nine billion, one hundred forty-nine million, four hundred eighty-one thousand, eight hundred sixty".