103402272640 has 32 divisors (see below), whose sum is σ = 247196059560. Its totient is φ = 41360908800.

The previous prime is 103402272637. The next prime is 103402272671. The reversal of 103402272640 is 46272204301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80782386 + ... + 80783665.

Almost surely, 2^103402272640 is an apocalyptic number.

103402272640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103402272640 is an abundant number, since it is smaller than the sum of its proper divisors (143793786920).

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

103402272640 is an equidigital number, since it uses as much as digits as its factorization.

103402272640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161566070 (or 161566058 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 103402272640 its reverse (46272204301), we get a palindrome (149674476941).

The spelling of 103402272640 in words is "one hundred three billion, four hundred two million, two hundred seventy-two thousand, six hundred forty".