140546421554 has 96 divisors (see below), whose sum is σ = 289456892928. Its totient is φ = 49874457600.

The previous prime is 140546421551. The next prime is 140546421581. The reversal of 140546421554 is 455124645041.

It is a super-2 number, since 2×140546421554² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140546421551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 814022 + ... + 971454.

It is an arithmetic number, because the mean of its divisors is an integer number (3015175968).

Almost surely, 2^140546421554 is an apocalyptic number.

140546421554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140546421554 is an abundant number, since it is smaller than the sum of its proper divisors (148910471374).

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

140546421554 is a wasteful number, since it uses less digits than its factorization.

140546421554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157512 (or 157501 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 41.

The spelling of 140546421554 in words is "one hundred forty billion, five hundred forty-six million, four hundred twenty-one thousand, five hundred fifty-four".