45121102451440 has 80 divisors (see below), whose sum is σ = 106480597698432. Its totient is φ = 17777681171712.

The previous prime is 45121102451423. The next prime is 45121102451497. The reversal of 45121102451440 is 4415420112154.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 45121102451396 and 45121102451405.

It is a congruent number.

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, 70147767 + ... + 70788073.

Almost surely, 2^{45121102451440} is an apocalyptic number.

45121102451440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45121102451440 is an abundant number, since it is smaller than the sum of its proper divisors (61359495246992).

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

45121102451440 is a wasteful number, since it uses less digits than its factorization.

45121102451440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653534 (or 653528 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

Adding to 45121102451440 its reverse (4415420112154), we get a palindrome (49536522563594).

The spelling of 45121102451440 in words is "forty-five trillion, one hundred twenty-one billion, one hundred two million, four hundred fifty-one thousand, four hundred forty".