155212050070 has 32 divisors (see below), whose sum is σ = 348320030976. Its totient is φ = 48377781600.

The previous prime is 155212050061. The next prime is 155212050079. The reversal of 155212050070 is 70050212551.

It is an interprime number because it is at equal distance from previous prime (155212050061) and next prime (155212050079).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155212050079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100786276 + ... + 100787815.

It is an arithmetic number, because the mean of its divisors is an integer number (10885000968).

Almost surely, 2^155212050070 is an apocalyptic number.

155212050070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155212050070 is an abundant number, since it is smaller than the sum of its proper divisors (193107980906).

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

155212050070 is a wasteful number, since it uses less digits than its factorization.

155212050070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201574116.

The product of its (nonzero) digits is 3500, while the sum is 28.

The spelling of 155212050070 in words is "one hundred fifty-five billion, two hundred twelve million, fifty thousand, seventy".