155446461366540 has 48 divisors (see below), whose sum is σ = 435491763473760. Its totient is φ = 41429373350400.

The previous prime is 155446461366529. The next prime is 155446461366551. The reversal of 155446461366540 is 45663164644551.

It is an interprime number because it is at equal distance from previous prime (155446461366529) and next prime (155446461366551).

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 719151895 + ... + 719368014.

It is an arithmetic number, because the mean of its divisors is an integer number (9072745072370).

Almost surely, 2^{155446461366540} is an apocalyptic number.

155446461366540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155446461366540 is an abundant number, since it is smaller than the sum of its proper divisors (280045302107220).

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

155446461366540 is a wasteful number, since it uses less digits than its factorization.

155446461366540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438521722 (or 1438521720 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 60.

The spelling of 155446461366540 in words is "one hundred fifty-five trillion, four hundred forty-six billion, four hundred sixty-one million, three hundred sixty-six thousand, five hundred forty".