155386540848 has 320 divisors, whose sum is σ = 531188858880. Its totient is φ = 38233831680.

The previous prime is 155386540847. The next prime is 155386540889. The reversal of 155386540848 is 848045683551.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (155386540847) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8487961 + ... + 8506247.

It is an arithmetic number, because the mean of its divisors is an integer number (1659965184).

Almost surely, 2^155386540848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155386540848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265594429440).

155386540848 is an abundant number, since it is smaller than the sum of its proper divisors (375802318032).

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

155386540848 is a wasteful number, since it uses less digits than its factorization.

155386540848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18357 (or 18329 counting only the distinct ones).

The product of its (nonzero) digits is 18432000, while the sum is 57.

The spelling of 155386540848 in words is "one hundred fifty-five billion, three hundred eighty-six million, five hundred forty thousand, eight hundred forty-eight".