7155450517040 has 40 divisors (see below), whose sum is σ = 19013054232480. Its totient is φ = 2453297319936.

The previous prime is 7155450517027. The next prime is 7155450517049. The reversal of 7155450517040 is 407150545517.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×7155450517040³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7155450516982 and 7155450517000.

It is not an unprimeable number, because it can be changed into a prime (7155450517049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6388794545 + ... + 6388795664.

It is an arithmetic number, because the mean of its divisors is an integer number (475326355812).

Almost surely, 2^{7155450517040} is an apocalyptic number.

7155450517040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7155450517040 is an abundant number, since it is smaller than the sum of its proper divisors (11857603715440).

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

7155450517040 is a wasteful number, since it uses less digits than its factorization.

7155450517040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12777590229 (or 12777590223 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 44.

The spelling of 7155450517040 in words is "seven trillion, one hundred fifty-five billion, four hundred fifty million, five hundred seventeen thousand, forty".