177228129045 has 16 divisors (see below), whose sum is σ = 309343643712. Its totient is φ = 85928789760.

The previous prime is 177228129007. The next prime is 177228129047. The reversal of 177228129045 is 540921822771.

It is not a de Polignac number, because 177228129045 - 2¹² = 177228124949 is a prime.

It is a super-2 number, since 2×177228129045² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 177228128985 and 177228129003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (177228129047) 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, 537054772 + ... + 537055101.

It is an arithmetic number, because the mean of its divisors is an integer number (19333977732).

Almost surely, 2^177228129045 is an apocalyptic number.

177228129045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

177228129045 is a deficient number, since it is larger than the sum of its proper divisors (132115514667).

177228129045 is a wasteful number, since it uses less digits than its factorization.

177228129045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074109892.

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 177228129045 in words is "one hundred seventy-seven billion, two hundred twenty-eight million, one hundred twenty-nine thousand, forty-five".