155402347100 has 576 divisors, whose sum is σ = 481919155200. Its totient is φ = 41886720000.

The previous prime is 155402347091. The next prime is 155402347103. The reversal of 155402347100 is 1743204551.

It is a super-3 number, since 3×155402347100³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155402347103) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 192091496 + ... + 192092304.

It is an arithmetic number, because the mean of its divisors is an integer number (836665200).

Almost surely, 2^155402347100 is an apocalyptic number.

155402347100 is a gapful number since it is divisible by the number (10) 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 155402347100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240959577600).

155402347100 is an abundant number, since it is smaller than the sum of its proper divisors (326516808100).

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

155402347100 is a wasteful number, since it uses less digits than its factorization.

155402347100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 155402347100 in words is "one hundred fifty-five billion, four hundred two million, three hundred forty-seven thousand, one hundred".