155447254770 has 32 divisors (see below), whose sum is σ = 373122065088. Its totient is φ = 41447195328.

The previous prime is 155447254741. The next prime is 155447254789. The reversal of 155447254770 is 77452744551.

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, 101284 + ... + 566703.

It is an arithmetic number, because the mean of its divisors is an integer number (11660064534).

Almost surely, 2^155447254770 is an apocalyptic number.

155447254770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155447254770 is an abundant number, since it is smaller than the sum of its proper divisors (217674810318).

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

155447254770 is a wasteful number, since it uses less digits than its factorization.

155447254770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675754.

The product of its (nonzero) digits is 5488000, while the sum is 51.

The spelling of 155447254770 in words is "one hundred fifty-five billion, four hundred forty-seven million, two hundred fifty-four thousand, seven hundred seventy".