162011162500 has 72 divisors (see below), whose sum is σ = 386593131456. Its totient is φ = 58913100000.

The previous prime is 162011162473. The next prime is 162011162507. The reversal of 162011162500 is 5261110261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (162011162507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451632 + ... + 726631.

It is an arithmetic number, because the mean of its divisors is an integer number (5369349048).

Almost surely, 2^162011162500 is an apocalyptic number.

162011162500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162011162500 is an abundant number, since it is smaller than the sum of its proper divisors (224581968956).

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

162011162500 is a wasteful number, since it uses less digits than its factorization.

162011162500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178303 (or 1178281 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 162011162500 its reverse (5261110261), we get a palindrome (167272272761).

The spelling of 162011162500 in words is "one hundred sixty-two billion, eleven million, one hundred sixty-two thousand, five hundred".