340420545104554 has 4 divisors (see below), whose sum is σ = 510630817656834. Its totient is φ = 170210272552276.

The previous prime is 340420545104539. The next prime is 340420545104557. The reversal of 340420545104554 is 455401545024043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 309056927400225 + 31363617704329 = 17580015^2 + 5600323^2 .

It is a super-2 number, since 2×340420545104554² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340420545104557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85105136276137 + ... + 85105136276140.

Almost surely, 2^{340420545104554} is an apocalyptic number.

340420545104554 is a deficient number, since it is larger than the sum of its proper divisors (170210272552280).

340420545104554 is a wasteful number, since it uses less digits than its factorization.

340420545104554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170210272552279.

The product of its (nonzero) digits is 3840000, while the sum is 46.

The spelling of 340420545104554 in words is "three hundred forty trillion, four hundred twenty billion, five hundred forty-five million, one hundred four thousand, five hundred fifty-four".