155541672 has 96 divisors (see below), whose sum is σ = 494938080. Its totient is φ = 43505280.

The previous prime is 155541667. The next prime is 155541677. The reversal of 155541672 is 276145551.

155541672 is a `hidden beast` number, since 1 + 55 + 541 + 67 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (155541667) and next prime (155541677).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (155541677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2743 + ... + 17849.

It is an arithmetic number, because the mean of its divisors is an integer number (5155605).

Almost surely, 2^155541672 is an apocalyptic number.

155541672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155541672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247469040).

155541672 is an abundant number, since it is smaller than the sum of its proper divisors (339396408).

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

155541672 is a wasteful number, since it uses less digits than its factorization.

155541672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15143 (or 15136 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 155541672 is about 12471.6346963820. The cubic root of 155541672 is about 537.7935481086.

The spelling of 155541672 in words is "one hundred fifty-five million, five hundred forty-one thousand, six hundred seventy-two".