177145045102 has 4 divisors (see below), whose sum is σ = 265717567656. Its totient is φ = 88572522550.

The previous prime is 177145045093. The next prime is 177145045117. The reversal of 177145045102 is 201540541771.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×177145045102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44286261274 + ... + 44286261277.

It is an arithmetic number, because the mean of its divisors is an integer number (66429391914).

Almost surely, 2^177145045102 is an apocalyptic number.

177145045102 is a deficient number, since it is larger than the sum of its proper divisors (88572522554).

177145045102 is an equidigital number, since it uses as much as digits as its factorization.

177145045102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88572522553.

The product of its (nonzero) digits is 39200, while the sum is 37.

Adding to 177145045102 its reverse (201540541771), we get a palindrome (378685586873).

The spelling of 177145045102 in words is "one hundred seventy-seven billion, one hundred forty-five million, forty-five thousand, one hundred two".